body,
div,
span,
em,
header,
footer,
nav,
section,
aside,
article,
ul,
dl,
dt,
dd,
li,
a,
p,
h1,
h2,
h3,
h5,
h6,
i,
b,
label,
textarea,
button,
input,
select,
figure,
figcaption,
form {
    padding: 0;
    margin: 0;
    list-style: none;
    font-style: normal;
    text-decoration: none;
    border: none;
    font-weight: normal;
    font-family:  "Arial", "Helvetica", "Verdana", "sans-serif";
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    -webkit-font-smoothing: antialiased;
    -webkit-overflow-scrolling: touch; //ios端滑动屏幕回弹流畅效果
    &:hover {
        outline: none;
    }
}

input,
button {
    border: 0;
    outline: 0;
    appearance: none;
    -webkit-appearance: none;
    border-radius: 0;
    -moz-border-radius: 0;
    -webkit-border-radius: 0;
    box-shadow: 0;
    -webkit-box-shadow: 0;
    -moz-box-shadow: 0;
    background: none;
}

textarea {
    -webkit-appearance: none;
}

i,
cite,
em,
var,
address,
dfn {
    font-style: inherit;
}

html,
body {
    width: 100%;
    height: 100%;
    background-color: #fff;
    -webkit-overflow-scrolling: touch; //ios端滑动屏幕回弹流畅效果
}

//去掉图片底部默认空白缝隙
img {
//  border: 0;
//  vertical-align: middle;
//  max-width: 100%;
}

a {
    -webkit-tap-highlight-color: transparent; // 取消a标签手指按下时出现的黑色遮罩层
}

input,
label {
    // 解决IOS下表单元素圆角的问题
    -webkit-appearance: none;
    -webkit-tap-highlight-color: transparent;
}


/*定义滚动条高宽及背景 高宽分别对应横竖滚动条的尺寸*/

::-webkit-scrollbar {
    width: 0px;
    height: 0px;
    background-color: #eee;
}


/*定义滚动条轨道 内阴影+圆角*/

::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 1px rgba(0, 0, 0, 0);
    background-color: #eee;
    // border-radius: 10px;
}


/*定义滑块 内阴影+圆角*/

::-webkit-scrollbar-thumb {
    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, .3);
    background-color: #ccc;
    // border-radius: 10px;
}